Exam 4: Volcanoes and Volcanic Processes

Mafic magma is more likely to erupt explosively and form pyroclastic deposits than felsic or andesitic magma.

Gas rich andesitic magmas generate composite volcanoes.

A volcanic neck is a solidified plug of magma extruded slowly above the rim of the crater.

Kilauea and Mauna Loa are what kind of volcanoes?

The greatest rate of volcanism and largest accumulations of volcanic deposits are associated with ________.

Volcanic lapilli are particles ________.

What is the name for the landform made by the Galapagos Islands or of Mauna Loa and the other large, broad, Hawaiian volcanoes?

Gas rich andesitic magmas generate composite volcanoes made up of ________.

Word Analysis Questions Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

In November 2010, which Indonesian volcano provided the largest eruption in SE Asia in a century?

Which of the following is associated with deep mantle plumes?

Which one of the following best describes volcanism in the Cascade Range of northern California through Washington and its northerly extension as the Garibaldi Belt in SW B.C.?

Aa flows are generally thinner, faster moving, and have smoother surfaces than pahoehoe flows.

What is the most likely feeder conduit for a mafic fissure eruption?

Which volcano is a very large, gently sloping mound composed mainly of mafic lava flows?

Volcanoes occur along the San Andreas fault.

In general, which of the following types of magma will be more likely to erupt explosively?

Basaltic shield volcanoes comprise the mountains of the Cascade Range.

Which one of the three major kinds of volcanoes consists almost exclusively of pyroclastic debris?

How do volcanic bombs originate?